- Fixed logger registration with custom logger and made res.statusCode optional, preventing re‑thrown error crashes.
- Updated documentation (user agent header, async/await reply handling, setErrorHandler example) and corrected default text parser example.
- Added ecosystem plugins for MySQL and PostgreSQL, renamed the lyra plugin, improved content‑type parser performance, and deprecated the default route.
v4.11.0
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Fix for two Fastify security advisories (GHSA‑w2qp‑rph6‑63g4 and GHSA‑3m5p‑2c4r‑xxw2).
Added per‑route logging for Google Cloud Functions and introduced `Reply.prototype.mediaType` for easier content‑type handling.
Fixed trailer state clearing when removing all trailers and corrected requestCompleted handling to use null instead of undefined.